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PCF2003DUS/DAAZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
PCF2003 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 1 — 20 October 2015 28 of 30
NXP Semiconductors
PCF2003
32 kHz watch circuit with programmable adaptive motor pulse
21. Tables
Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . .2
Table 2. Ordering options. . . . . . . . . . . . . . . . . . . . . . . . .2
Table 3. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . .3
Table 4. Time calibration . . . . . . . . . . . . . . . . . . . . . . . . .7
Table 5. Words and bits . . . . . . . . . . . . . . . . . . . . . . . . . .8
Table 6. Description of word A bits . . . . . . . . . . . . . . . . .8
Table 7. Description of word B bits . . . . . . . . . . . . . . . . .9
Table 8. Description of word C bits . . . . . . . . . . . . . . . .10
Table 9. Description of word D bits . . . . . . . . . . . . . . . .10
Table 10. Limiting values . . . . . . . . . . . . . . . . . . . . . . . . .16
Table 11. Characteristics . . . . . . . . . . . . . . . . . . . . . . . . .17
Table 12. Specifications for OTP programming . . . . . . . .18
Table 13. Dimension of PCF2003US . . . . . . . . . . . . . . .19
Table 14. Bonding pad description. . . . . . . . . . . . . . . . . .20
Table 15. Carrier tape dimensions of PCF2003DUS . . . .21
Table 16. Lead-free process (from J-STD-020D) . . . . . .22
Table 17. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . .24
Table 18. Revision history . . . . . . . . . . . . . . . . . . . . . . . .25
PCF2003 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 1 — 20 October 2015 29 of 30
NXP Semiconductors
PCF2003
32 kHz watch circuit with programmable adaptive motor pulse
22. Figures
Fig 1. Block diagram of PCF2003 . . . . . . . . . . . . . . . . . .2
Fig 2. Pin configuration of PCF2003DUS . . . . . . . . . . . .3
Fig 3. Correction sequence after failed motor step . . . . .4
Fig 4. Possible modulations for a 3.9 ms motor pulse . . .5
Fig 5. Simplified diagram of motor driving and step
detection circuit . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fig 6. Step detection sequence and corresponding
sampling voltage . . . . . . . . . . . . . . . . . . . . . . . . . .7
Fig 7. Supply voltage modulation for programming . . . .12
Fig 8. Supply voltage modulation and corresponding
supply current variation for reading word B . . . . .13
Fig 9. Frequency tuning the assembled watch . . . . . . .14
Fig 10. Supply voltage at start-up during production
and testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Fig 11. Output waveform at pad RESET for instruction
state 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Fig 12. Supply voltage modulation for starting
and stopping of instruction state 2. . . . . . . . . . . .15
Fig 13. Bare die outline of PCF2003DUS (for dimensions
see Table 13
, for pin location see Table 14) . . . .19
Fig 14. Tape and reel details for PCF2003DUS. . . . . . . .21
Fig 15. Temperature profiles for large and small
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
NXP Semiconductors
PCF2003
32 kHz watch circuit with programmable adaptive motor pulse
© NXP Semiconductors N.V. 2015. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 20 October 2015
Document identifier: PCF2003
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
23. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4.1 Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 2
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
7 Functional description . . . . . . . . . . . . . . . . . . . 3
7.1 Motor pulse. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7.2 Step detection. . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.3 Time calibration . . . . . . . . . . . . . . . . . . . . . . . . 7
7.4 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.5 Programming possibilities. . . . . . . . . . . . . . . . . 8
7.6 Programming procedure. . . . . . . . . . . . . . . . . 11
7.7 Programming the memory cells . . . . . . . . . . . 11
7.8 Checking memory content . . . . . . . . . . . . . . . 12
7.9 Frequency tuning of assembled watch . . . . . . 14
7.10 Measurement of oscillator frequency and
inhibition time . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.11 Customer testing . . . . . . . . . . . . . . . . . . . . . . 15
8 Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 17
11 OTP programming characteristics. . . . . . . . . 18
12 Bare die outline . . . . . . . . . . . . . . . . . . . . . . . . 19
13 Handling information. . . . . . . . . . . . . . . . . . . . 20
14 Packing information . . . . . . . . . . . . . . . . . . . . 21
14.1 Tape and reel information . . . . . . . . . . . . . . . . 21
15 Soldering of WLCSP packages. . . . . . . . . . . . 22
15.1 Introduction to soldering WLCSP packages . . 22
15.2 Board mounting . . . . . . . . . . . . . . . . . . . . . . . 22
15.3 Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 22
15.3.1 Stand off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
15.3.2 Quality of solder joint . . . . . . . . . . . . . . . . . . . 23
15.3.3 Rework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
15.3.4 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
16 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 24
17 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
18 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 25
19 Legal information. . . . . . . . . . . . . . . . . . . . . . . 26
19.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 26
19.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
19.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 26
19.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 27
20 Contact information . . . . . . . . . . . . . . . . . . . . 27
21 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
22 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
23 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

PCF2003DUS/DAAZ

Mfr. #:
Buy PCF2003DUS/DAAZ
Manufacturer:
NXP Semiconductors
Description:
IC CLOCK 32KHZ 1CIR 8WLCSP
Lifecycle:
New from this manufacturer.
Delivery:
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